/Engine/Source/Runtime/Engine/Classes/Components/InstancedStaticMeshComponent.h
Update the transform for an array of instances. Overloaded version which takes an array of NewPreviousFrameTransforms.
virtual bool BatchUpdateInstancesTransforms ( int32 StartInstanceIndex, const [TArray](API\Runtime\Core\Containers\TArray)< FTransform > & NewInstancesTransforms, const [TArray](API\Runtime\Core\Containers\TArray)< FTransform > & NewInstancesPrevTransforms, bool bWorldSpace, bool bMarkRenderStateDirty, bool bTeleport )